Triple

T25856
Position Surface form Disambiguated ID Type / Status
Subject Porter E516 entity
Predicate code P1537 FINISHED
Object Porter (MBTA station)
Porter (MBTA station) is a transit station in Cambridge, Massachusetts, serving the MBTA Red Line subway and commuter rail with a notably deep underground platform.
E22835 NE FINISHED

How this triple was built (5 steps)

Every LLM step that produced this triple, in pipeline order — named-entity classification, the disambiguation choices (the exact options shown, with the pick highlighted), and the generated description. The batch + timestamp of each is in the Provenance table below.

NER Named-entity recognition gpt-5-mini
Instruction
Given a phrase, classify it is english named entity (e.g., persons, organizations, works of art) in Latin script, or not (e.g., literals, dates, URLs, verbose phrases). For disambiguation, the statement where the phrase occurs as object is also given. Please return a JSON object with `phrase` (string, the phrase being analyzed) and `is_ne` (boolean, indicating whether the phrase is a Named Entity).
Input
Phrase: Porter (MBTA station) | Statement: [Porter, code, Porter (MBTA station)]
NED1 Entity disambiguation (via context triple) gpt-5-mini-2025-08-07
Target entity: Porter (MBTA station)
Context triple: [Porter, code, Porter (MBTA station)]
  • A. Wellington Station (MBTA)
    Wellington Station (MBTA) is an Orange Line rapid transit station in Medford, Massachusetts, serving as a key park-and-ride and bus transfer hub just north of downtown Boston.
  • B. South Station
    South Station is Boston’s major intercity rail and bus terminal and a key MBTA subway hub in the city’s downtown.
  • C. MBTA Green Line E branch
    The MBTA Green Line E branch is a light rail line in Boston that runs from downtown through the Back Bay and Longwood Medical Area to Heath Street, serving major hospitals, universities, and residential neighborhoods.
  • D. MBTA Green Line D branch
    The MBTA Green Line D branch is a light rail line in the Boston metropolitan area that runs between downtown Boston and several western suburbs, including Newton and Riverside.
  • E. MBTA Red Line
    The MBTA Red Line is a major rapid transit line in the Boston metropolitan area that runs through key communities including Cambridge, connecting them to downtown Boston and other parts of the region.
  • F. None of above. chosen
  • G. Unsure - the case is ambiguous/there is not enough information to decide.
NEDg Description generation gpt-5.1
Instruction
Generate a one-sentence description of the target entity. 
You are given a context triple in the form (subject, predicate, object), where the object is the target entity. 
# Instructions
Use the triple to infer relevant information about the entity. Describe the entity based on what is most defining, well-known. 
Avoid repeating the information from the triple, unless really essential.
# Response Format
Return only the sentence: "Description: [one-sentence description of the target entity]"
Input
Entity: Porter (MBTA station)
Triple: [Porter, code, Porter (MBTA station)]
Generated description
Porter (MBTA station) is a transit station in Cambridge, Massachusetts, serving the MBTA Red Line subway and commuter rail with a notably deep underground platform.
NED2 Entity disambiguation (via description) gpt-5-mini-2025-08-07
Target entity: Porter (MBTA station)
Target entity description: Porter (MBTA station) is a transit station in Cambridge, Massachusetts, serving the MBTA Red Line subway and commuter rail with a notably deep underground platform.
  • A. Wellington Station (MBTA)
    Wellington Station (MBTA) is an Orange Line rapid transit station in Medford, Massachusetts, serving as a key park-and-ride and bus transfer hub just north of downtown Boston.
  • B. South Station
    South Station is Boston’s major intercity rail and bus terminal and a key MBTA subway hub in the city’s downtown.
  • C. MBTA Green Line E branch
    The MBTA Green Line E branch is a light rail line in Boston that runs from downtown through the Back Bay and Longwood Medical Area to Heath Street, serving major hospitals, universities, and residential neighborhoods.
  • D. MBTA Green Line D branch
    The MBTA Green Line D branch is a light rail line in the Boston metropolitan area that runs between downtown Boston and several western suburbs, including Newton and Riverside.
  • E. MBTA Red Line
    The MBTA Red Line is a major rapid transit line in the Boston metropolitan area that runs through key communities including Cambridge, connecting them to downtown Boston and other parts of the region.
  • F. None of above. chosen
PD Predicate disambiguation gpt-5-mini-2025-08-07
Target predicate: code
Context triple: [Porter, code, Porter (MBTA station)]
  • A. program
    Indicates that an entity creates, writes, or develops a computer program or software application.
  • B. script
    Indicates that an entity is associated with a written text or code (such as a screenplay, program, or written instructions) that defines its content or behavior.
  • C. codenameUser
    Indicates that a user is assigned or associated with a particular codename.
  • D. codifiedIn
    Indicates that something is formally recorded, defined, or established within a specific document, code, or legal/institutional text.
  • E. method
    Indicates the technique, procedure, or process used by an entity to perform an action or achieve a result.
  • F. None of above. chosen

Provenance (7 batches)

The batch behind each pipeline step, in order, with when it ran. Timestamps are batch-level — stages were processed in waves, so the object chain (NER → NED1 → NEDg → NED2) reads in order, but predicate / elicitation batches can sit in a different wave.

Step Stage Batch ID Status When
creating Elicitation batch_69a243b4ac2c8190b93c303df797b7b2 completed Feb. 28, 2026, 1:24 a.m.
NER Named-entity recognition batch_69a246d794448190bb2844fcd0538eaa completed Feb. 28, 2026, 1:37 a.m.
NED1 Entity disambiguation (via context triple) batch_69a2f0b0d5f481909987c4d937c7157a completed Feb. 28, 2026, 1:42 p.m.
NEDg Description generation batch_69a2f12e5f548190a0fb3ca1cb059be1 completed Feb. 28, 2026, 1:44 p.m.
NED2 Entity disambiguation (via description) batch_69a2f39599b08190be95c9ec634c5745 completed Feb. 28, 2026, 1:54 p.m.
PD Predicate disambiguation batch_69a24657635881908f3415bc1bdfa1b5 completed Feb. 28, 2026, 1:35 a.m.
PDg Predicate description generation batch_69a246d6aca88190a86b7c41d497bacd completed Feb. 28, 2026, 1:37 a.m.
Created at: Feb. 28, 2026, 1:34 a.m.